Lock



Nov. 22, 1932. A, ESELE 1,888,873

Loox

2 sheets-Sheet 2 Filed June 19. 1950 Patented Nov. 22, 1932 ALBERT msnm; or BERLIN-WESTEND, GERMANY LOCK- Applcaton led June 19, 1930, Serial No.

This invention relates to locks having an external casing accommodating a spring pressed catch or a sliding latch movable by a key. Hitherto different casings were necessary for locks with spring pressed catches and for locks with sliding latches. 'I his is a great inconvenience for the manufacturer as Well as for the dealer.

The primary object of the invention is to simplify the manufacture and the handling of locks of the kind referred to by having one casing only capable of accommodating at will a latch bolt mechanism or a dead bolt mechanism.

An important feature of the invention resides therefore in the combination with the lock casing of means for operating either a latch bolt or a dead bolt. These means being independent of the said bolt mechanisms, the casings can now be manufactured, stored, de-

livered and sold separately from the said mechanisms which are only inserted into the casings according to the requirements.

Other features of the invention and combinations of parts will be apparent from the following description and the annexed drawm s gIn the drawingsz-Figs. l to 3 show the main part of the lock-casing, Fig. l being a plan view, Fig. 2 a section along the line AB; and Fig. 3 a section along the line C-D of Fig. l; Fig. 4t is a plan View of the inside side of the corresponding cover; Fig. 5 is a plan View of the housing with a latch bolt mechanism inserted the-rein; Fig. 6 is a rear elevation of the latch bolt mechanism; Figs. 7 and 8 are plan views of the housing with inserted dead bolt mechanisms of a single and of double throw respectively; Fig. 9 is a plan view of the dead bolt mechanism; Fig. 10 is a plan view of a cast metal housing provided with an adapter; Fig. l1 is a section on the line E-F of Fig. l0; Fig. 12 is a plan View of the adapter; and Figs. 13 and le correspond to the Figs'. l0 and l1 and illustrate a sheet metal housing with the adapter therein.

Referring first to Figs. l to t the casing a shows an opening Z) for the latch bolt or the dead bolt of the lock. In the bore 0 of the position shown in Fig. 5.

462,317, and in Germany .Tune 25, 1929'.

casing is journaled a shaft l of a knob e or` of a handle for operating the lock. To the shaft d is fastened a cam-disc f for operating a latch bolt. -On the disc are arranged two pins g for operating a dead bolt. rlhel casing ais provided with oppositely disposed dogs 7L serving as a support kfor the abutment plate of the spring pressed latch bolt. The interior of the casing isfurther provided with several lugs fr, y for guiding the bolt mechanism. oo The cover a,'see Fig. 4;, is also provided with a cam disc f and with pins g.

Fig. 5 shows a casing a with an inserted latch bolt mechanism. The latch bolt 7c projects withy guiding legs Z' through openings of the plate n abutting against the dogs It. Laterally bent parts m of the legs Z are' engaged by the cams 0 of the disc f for retracting the latch bolt. The compressed spring z' encircling the shank 7c of the latch bolt 7c to tends to keep the latch bolt in the projected Thus by turning the disc f by means of the handle e or the key the lock is opened while by releasing the hanldle or. the key the lock is automatically closed. ,75

Fig. 7 shows the same casing a with an inserted dead bolt mechanism. The dead bolt p is provided with the guiding plate or shank g and with the tumbler plates rarranged on either side of the plate g. The tumbler platesI Se r are connected by pins s and are kept in their shown normal position by the spring t. The tumbler plates r have notches u adapted to be engaged by the pins g, g1. When turningV the disc f by the knob e or an equivalent means the pins g pull or push the bolt p. The arrangement shown in Fig. 8 illustrates a dead bolt with a double throw which otherwise is analogous to the bolt with the single throw illustrated in Fig. 7 90 From the foregoing it is evident that the latch mechanism can be easily changed into a dead bolt mechanism and reversely without changing the casing itself.

In the embodiments described the casing is assumed to be of cast metal. But a further simpliication is desirable in order to make it possible to not only use different lock mechanisms with the same casing but to also use the dierent lock mechanisms at will 100 with cast metal casings or with sheet metal casings. Now the interior of the cast metal casings is provided with several indispensable lugs as, for instance designated in Fig. 1 by 5 the letters 71 m, y which are not common with sheet metal casings. To obviate this dierence I provide an adapter and I mount the lock mechanisms in adapters which fit into the casings the interior of which is of a plain uniform shape irrelevant of the material they are made o Such an adapter j is shown in Figs. 10, 11 and Figs. 13, 14 illustrate the adapter y' inserted into a cast-metal casing a and into a l5 sheet-metal casing a2 respectively. The adapter y' itself is of sheet metal and is pro vided with the stamped lugs h', w and y. lIt is fastened to the casing by pins or screws e, z. The cover a is inserted with its tailpiece z3 into a slot a4 of the rear wall of the casing. At the front edge the cover has downwardly projecting flaps a5 aligning with openings a of the casing for fastening the cover to the casing by means of screws.

What I claim is 1. In locks, a casing, and a rollback structure with cam and pins for cooperating eitherV with a spring pressed latch bolt or with a sliding dead bolt.

2. In locks, a casing, and a rollback structure with cam and pins for cooperating either with a spring pressed latch bolt or with a sliding dead bolt, the cam and the pins rotating in different planes.

3. In locks, a casing, an adapter fitting into the casing, and a rollback structure with cam and pins for cooperating either with aspring pressed latch bolt or with a sliding dead bolt arranged in the adapter.

In testimony whereof I affix my signature.

ALBERT EISELE. 

